M
API Matrix

Box API

Cloud Storage & File Sharing / OAuth Advanced HTTPS
Varies by plan (check documentation)
78 Score
Grade B
Visit Official Site Compare Alternatives

Overview

Box is an enterprise cloud content management platform with a comprehensive API for uploading, downloading, organizing, and sharing files programmatically. It supports fine-grained permission management, webhooks, metadata templates, and collaboration workflows. The API uses OAuth 2.0 and is well-suited for document management systems and enterprise workflow automation.

💡

Beginner Tip

Start at developer.box.com to create a free app and get OAuth credentials. Use the official Box SDK for your language rather than raw HTTP — it handles token refresh and pagination automatically, saving significant boilerplate.

Available Data

Use case: Integrate file sharing and storage data into web and mobile applications
Box data via REST API
JSON-formatted response data
Requires OAuth authentication

Example Response

JSON Response 
{
  "file_id": "f_abc123",
  "filename": "document.pdf",
  "size_bytes": 1048576,
  "mime_type": "application/pdf",
  "download_url": "https://example.com/files/f_abc123",
  "created_at": "2025-01-15T10:00:00Z"
}

Field Reference

id Unique Box identifier for the file or folder
type Entity type: 'file', 'folder', or 'web_link'
name Display name of the file or folder as stored in Box
size File size in bytes; present only for files, not folders
modified_at ISO 8601 timestamp of the last modification to the item
owned_by User object for the owner of the item, containing id, login, and name fields

Implementation Example 

const url = "https://developer.box.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "Authorization": "Bearer YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

401 Unauthorized — access token expired Box access tokens expire after 60 minutes
✓ Use the refresh token to get a new access token automatically, or use a server-side JWT app for non-expiring service tokens.
409 Conflict on file upload A file with the same name already exists in the target folder
✓ Use the If-Match header for updates, or query for the existing file first and use the update endpoint instead of create.
403 Forbidden on shared content The authenticated user does not have the required collaboration role in that folder
✓ Ensure the user has at least 'viewer' or 'editor' role on the folder via the collaborations endpoint before accessing its content.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 20/20
🔒 Security 15/15
🛠 Developer XP 3/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth OAuth
HTTPS REQUIRED
CORS UNKNOWN
Category Cloud Storage & File Sharing
Difficulty Advanced
Verified: 2026-04-07

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